CVSS v3
8.1
HIGH
EPSS Score
90.2%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
The Tatsu WordPress plugin before 3.3.12 add_custom_font action can be used without prior authentication to upload a rogue zip file which is uncompressed under the WordPress's upload directory. By adding a PHP shell with a filename starting with a dot ".", this can bypass extension control implemented in the plugin. Moreover, there is a race condition in the zip extraction process which makes the shell file live long enough on the filesystem to be callable by an attacker.
The Tatsu WordPress plugin before 3.3.12 add_custom_font action can be used without prior authentication to upload a rogue zip file which is uncompressed under the WordPress's upload directory. By adding a PHP shell with a filename starting with a dot ".", this can bypass extension control implemented in the plugin. Moreover, there is a race condition in the zip extraction process which makes the shell file live long enough on the filesystem to be callable by an attacker.
Active exploitation of CVE-2021-25094 has not been confirmed. The EPSS score is 90.2%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2021-25094 has a CVSS v3 base score of 8.1 (HIGH severity).
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Ranked by exploit probability (EPSS).